Preparing method of folded-structure textured auxetic yarn

Abstract

The invention discloses a preparing method of folded-structure textured auxetic yarn. The method is characterized by including the steps of selecting yarn with core yarn being elastic filament as the raw material, conducting deformation treatment on surface layer fiber or core yarn of the yarn through mechanical deformation, physical deformation or mechanical and physical combined deformation so as to endow yarn surfaces with loop structures, folding the loop structures on the yarn surfaces and leading folded auxetic structures in the yarn, conducting yarn setting on the folded yarn to stabilize the folded structures in the yarn, and conducting after-treatment or functional treatment on the set yarn to improve the mechanical property, tactile style or visual style of the yarn or endow the yarn with functions. The prepared stretching yarn has the advantages of auxeticity, structural stability and good tactile and visual effects; the yarn is high in production efficiency, provides the basis for wide application of the stretching yarn, and can be used in the fields of clothing, filtering materials, biomedical application, tissue engineering, photoelectric materials, surge guard, sensors, composite materials and the like.

Description

technical field [0001] The invention relates to a preparation method of a folded structure deformed auxetic yarn, in particular to a preparation method of a folded structure deformed auxetic yarn, belonging to the technical field of auxetic structural materials for textiles and garments. Background technique [0002] Auxetic materials are known as one of the smart materials in the 21st century. The application of flexible auxetic materials, such as auxetic fibers, auxetic yarns, and auxetic fabrics, is of great significance to the development and application of smart textiles. In the past twenty or thirty years, the research on auxetic textiles has attracted people's attention. Auxetic material refers to a material with a negative Poisson’s ratio, that is, when it is stretched (or compressed) in a certain direction relative to traditional materials, it will shrink (or expand) perpendicular to the direction of the force. When stretched (or compressed) in a certain direction,...

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Problems solved by technology

[0004] The problem to be solved by the present invention is: traditio

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